CyberHunter
Local dataset, no network
// Other services

Port 35003: ReadyTech DeviceMapper Server

Port 35003 is assigned by IANA to rt-devicemapper (ReadyTech DeviceMapper Server).

35003

How rt-devicemapper works

Other services
client:35003rt-devicemapperresponse client:35003rt-devicemapperresponse

The client sends a request to port 35003 and the rt-devicemapper service answers.

Transport
TCP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
01 Security

Is port 35003 dangerous?

We have no specific security note for port 35003. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 35003

ServicePortTransportDescriptionReferenceUpdated
rt-devicemapper 35003 TCP ReadyTech DeviceMapper Server - 2013-09-13
-35003-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 35003, and is it reachable?

Linux

sudo ss -ltnup 'sport = :35003'      # process listening on 35003
sudo lsof -nP -i :35003

macOS

sudo lsof -nP -i :35003

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 35003 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 35003
netstat -ano | findstr :35003

From another machine

nmap -p 35003 -sV <host>
nc -zv <host> 35003

Block it in the firewall

sudo ufw deny 35003/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 35003" -Direction Inbound -LocalPort 35003 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 35003 used for?

Port 35003 is assigned by IANA to rt-devicemapper (ReadyTech DeviceMapper Server).

Is port 35003 TCP or UDP?

Port 35003 is registered for TCP.

Is it safe to open port 35003?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 35003 is open?

On Linux run "ss -ltnup 'sport = :35003'", on macOS "lsof -nP -i :35003", and on Windows "netstat -ano | findstr :35003" to see the local process. From another machine, "nmap -p 35003 <host>" shows whether it is reachable.

05 Related

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